grant-table: type confusion in grant-copy

ISSUE DESCRIPTION When grant-copy operations are processed, the respective grant may or may not already be in use by another operation a mapping or another copy. For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant the grant is...

grant-table: version change racing with other operations

ISSUE DESCRIPTION With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, as a bigger shared entry structure is then needed while the shared table doesn't change size. Switching from ...

correct buffer checks for DM_OP hypercalls

ISSUE DESCRIPTION Parts of the DMOP handling code assumes the caller has provided the required number of buffers for the given operation without any checking being done. As a result, certain operations might access stack rubble as structures are possibly uninitialized. IMPACT A device model of a...

PT-2026-65476

A guest started with Populated on Demand enabled PoD can attempt to reclaim pages which aren't regular guest RAM. This can cause corruption of memory management state in Xen...

PT-2026-65460

Xenstore, to have an up-to-date picture of the entire system, wants to know of domains appearing and disappearing. To make this more robust, a new XEN DOMCTL get domain state was introduced. The management of the bitmap underlying that operation is tied into the binding of the VIRQ DOM EXC virtua...

RHEL 8 : kernel (RHSA-2026:47248)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:47248 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xen/privcmd: fix double free...

USN-8604-1: Linux kernel (Azure) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Foo-over-UDP FOU; - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Drivers...

USN-8604-1 linux-azure-6.17 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Foo-over-UDP FOU; - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Drivers...

MiracleLinux 9 : kernel-5.14.0-687.13.1.el9_8 (AXSA:2026-1341:52)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1341:52 advisory. kernel: smb: client: fix OOB reads parsing symlink error response CVE-2026-31613 kernel: Buffer overflow in drivers/xen/sys-hypervisor.c...

EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2026-2854)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : mrp: introduce active flags to prevent UAF when applicant uninitCVE-2022-50697 net: skbuff: propagate shared-frag marker through...

EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-2642)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : mrp: introduce active flags to prevent UAF when applicant uninitCVE-2022-50697 net: skbuff: propagate shared-frag marker through frag-transfer...

CVE-2026-42486

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

ALPINE-CVE-2026-23560

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-23562 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-23562

The CVE-2026-23562 entry concerns RBAC mis-configuration in XAPI. The advisory notes that the PCI passthrough configuration was normally restricted to pool-admin, but one API did not enforce this check, allowing a vm-admin to access unintended host hardware. This is described alongside related RB...

CVE-2026-23561

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-23561

CVE-2026-23561 is part of a set of RBAC-related issues in XAPI (XenServer/XCP-ng) where certain administrator roles (vm-admin, etc.) can improperly modify RBAC-protected settings. Specifically, this CVE allows a vm-admin to set VM.other_config:storage_driver_domain and mark a VM as the storage do...

CVE-2026-23560 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...